Community archive. This is a preserved copy of gbbopen.org reconstructed from Internet Archive snapshots. The live site went offline between May 2024 and early 2026. Original project by Dan Corkill; content is Apache 2.0 per the GBBopen project license. See the archive repository for provenance details and a per-page snapshot date manifest.

Training & Support

GBBopen users are encouraged to contact us at support@GBBopen.org.

Bugs should be reported to bugs@GBBopen.org.

Annotated Blackboard-System Bibliography

The Annotated Blackboard-System Bibliography of classic papers and articles provides a good overview of the literature. (Some if these papers are available on line.)

GBBopen Tutorial

You did take a look at the GBBopen HyperTutorial, correct?